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Diatom-diatom interactions with light: Applications and line shape theoretical aspects
Department of Chemistry, University of Gothenburg.
2008 (English)In: Spectral line shapes, volume 15: 19th International Conference on Spectral Line Shapes, Valladolid, Spain, 15 - 20 June 2008 ; ICSLS / [ed] Marco A. Gigosos; Manuel A. González, Melville, NY: American Institute of Physics (AIP), 2008, 297-301 p.Conference paper (Refereed)
Abstract [en]

Recent advances in calculations of collision-induced absorption- and Raman-spectra in pure diatomic gases are presented. An extensive calculation of H2-H2 absorption from 40 K to 400 K has provided improved understanding of the atmosphere of Uranus. A highly advanced close-coupling calculation of H2-H2 light scattering has verified that the line shapes are affected by interference between the permanent H2 and the H2-H2 interaction-induced polarizabilities. A few directions that the research in astrophysical applications of collision-induced absorption is taking are also described. For instance, H2-H 2 dipole and potential surfaces for vibrations higher than v = 1 are currently being developed to enable simulations of collision-induced absorption at temperatures relevant for white dwarf atmospheres. For low temperature N 2-N2 absorption there is unresolved discrepancy between measurement and simulation. A possible solution to this puzzle is suggested

Place, publisher, year, edition, pages
Melville, NY: American Institute of Physics (AIP), 2008. 297-301 p.
A I P Conference Proceedings Series, ISSN 0094-243X ; 1058
Research subject
Tillämpad fysik
URN: urn:nbn:se:ltu:diva-38778DOI: 10.1063/1.3026464Local ID: d470e1a2-711a-406f-82b3-a7b024f5c063ISBN: 9780735405882 (print)OAI: diva2:1012279
International Conference on Spectral Line Shapes : 15/06/2008 - 20/06/2008
Upprättat; 2008; 20141105 (andbra)Available from: 2016-10-03 Created: 2016-10-03

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Gustafsson, Magnus

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